Simon
Kagi charts are a bit like swing charts but, like point and figure charts, they ignore the passage of time.
when price exceeds a preceding high the kagi chart line changes from thin to thick and then stays as a thick line until price drops below the preceding low and then stays thin until the price exceeds the preceding high when it changes to thick and so on.
the basic trading technique is to buy when kagi line changes from thin to thick and sell when it changes from thick to thin.
sequences of higher highs and lower lows can be seen easily to confirm bullish/bearish sentiment.
Jon